<html>

<head>
    <meta charset="utf-8">
</head>

<body>
    <div>中文测试</div>
</body>
<script>
    console.log("fetchTest");

    let dataToSend = { "k1": "v1","k2":"v2" };
    fetch("https://sciter.com/test/test-file-receiver.php", {
        method: "POST",
        body: dataToSend
    }).then(resp => {
        console.log("ccc",resp.text());
    });
</script>

</html>